SMD2920-200 [YINT]
POLYMER RESETTABLE FUSE;
| 型号： | SMD2920-200 |
| 厂家： | 
Yint |
| 描述： | POLYMER RESETTABLE FUSE |
| 文件： | 总4页 (文件大小：476K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
POLYMER RESETTABLE FUSE
SMD2920 Series
Trustworthy electronic circuit protection expert
SMD2920 Series
Features
Smaller size saves board space and cost
Resettable circuit protection
Fast time-to-trip
Low resistance
Surface mount packaging for automated assembly
Lead-free and compliant with the European Union RoHS Directive 2002/95/EC
Application
●Polymer Resettable Fuse for over-current, over-temperature and short-circuit protection
●Computer motherboards
●IEEE1394 Ports
●USB hub, ports and peripherals
●Data communication
●Modems/ Ethernet/LAN
General Description
●Polymer resettable fuse are made of polymeric PTC materials which is a matrix of
●polymer containing dispersed conductive particles. Generally, the device has a very
●low resistance. If an over-current happened, as a response to the damage current,
●the resistance will immediately increase to very high, reducing the current of the
●circuit to a safe value that the loading can carry. Once fault to the circuit is weed out
●and power is recuperated, the polymer will deflate itself , the device will reset and is
●ready for normal operation.
Product Dimensions （mm）
A
B
C
D
Min.
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
型号
Min.
6.73
6.73
6.73
6.73
6.73
6.73
6.73
6.73
6.73
6.73
6.73
Max.
7.98
7.98
7.98
7.98
7.98
7.98
7.98
7.98
7.98
7.98
7.98
Min.
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
Max.
5.44
5.44
5.44
5.44
5.44
5.44
5.44
5.44
5.44
5.44
5.44
1
Min.
0.6
0.6
0.6
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
Max.
1.15
1.15
1.15
1.00
0.90
0.90
0.90
0.90
0.90
0.90
0.90
SMD2920-030
SMD2920-050
SMD2920-075
SMD2920-100
SMD2920-125
SMD2920-150
SMD2920-185
SMD2920-200
SMD2920-250
SMD2920-260
SMD2920-300
www.yint.com.cn
Rev:19.3
POLYMER RESETTABLE FUSE
SMD2920 Series
Trustworthy electronic circuit protection expert
Electrical Characteristics
Max Time
Ihold
Itrip @
25℃
(A)
Pd
Max
(W)
Resistance
to trip
Model
Vmax(Vdc)
Imax(A) @25℃
Current Time R1min R1max(
(A)
(A)
1.5
2.5
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
(Sec)
3.0
(Ω)
Ω)
SMD2920-030
SMD2920-050
SMD2920-075
SMD2920-100
SMD2920-125
SMD2920-150
SMD2920-185
SMD2920-200
SMD2920-250
SMD2920-260
SMD2920-300
60
60
10
10
40
40
40
40
40
40
40
40
40
0.30
0.50
0.75
1.00
1.25
1.50
1.85
2.00
2.50
2.60
3.00
0.60
1.00
1.50
2.00
2.50
3.00
3.70
4.00
5.00
5.20
6.00
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
0.600
0.180
0.100
0.065
0.050
0.035
0.030
0.020
0.020
0.014
0.012
4.800
1.400
1.000
0.410
0.250
0.230
0.150
0.120
0.085
0.075
0.048
4.0
33
0.3
33
0.5
33
2.0
33
2.0
33
2.5
16/24
16
4.5
16.0
10.0
20.0
6
6/16
Thermal Derating (A)
-40℃
-20℃
0℃
25℃
0.30
0.50
0.75
1.00
1.25
1.50
1.85
2.00
2.50
2.60
3.00
40℃
50℃
60℃
0.20
0.33
0.50
0.73
0.83
1.00
1.22
1.32
1.65
1.95
1.99
70℃
0.17
0.29
0.44
0.64
0.73
0.87
1.07
1.16
1.45
1.74
1.75
85℃
0.14
0.23
0.34
0.50
0.56
0.74
0.85
0.90
1.13
1.13
1.34
Model
SMD2920-030
SMD2920-050
SMD2920-075
SMD2920-100
SMD2920-125
SMD2920-150
SMD2920-185
SMD2920-200
SMD2920-250
SMD2920-260
SMD2920-300
0.45
0.76
1.13
1.66
1.89
2.27
2.80
3.02
3.78
3.64
4.53
0.40
0.67
1.01
1.47
1.68
2.01
2.47
2.68
3.35
3.25
4.02
0.35
0.59
0.88
1.29
1.46
1.76
2.17
2.34
2.93
2.91
3.51
0.25
0.42
0.62
0.91
1.04
1.25
1.54
1.66
2.08
2.26
2.52
0.23
0.38
0.56
0.83
0.94
1.13
1.39
1.50
1.88
2.08
2.26
2
www.yint.com.cn
Rev:19.3
POLYMER RESETTABLE FUSE
SMD2920 Series
Trustworthy electronic circuit protection expert
IH/T-chart
Test Procedures and Requirements
Test
Test Conditions
Accept/Reject Criteria
Rmin≤R≤R1max
T≤max. time to trip(seconds)
No trip
Resistance
In still air @ 25℃
Time to Trip
Vmax, 25℃, In still air @ 25℃
30 min. at IH, In still air @ 25℃
Vmax, Imax, 100 cycles, In still air
@ 25℃
Hold Current
No arcing or burning
Trip Cycle Life
No arcing or burning
Trip Endurance
Vmax, 1 hours, In still air @ 25℃
Solder Reflow Conditions
3
www.yint.com.cn
Rev:19.3
POLYMER RESETTABLE FUSE
SMD2920 Series
Trustworthy electronic circuit protection expert
Order— Name Information
Packaging Information
SMD2920 Series :2000PCS /
20K/Box
Basic terminology description
IH：
Maximum current of PPTC not working in 25 ℃ static Air Environment
Minimum current required for PPTC Action in 25 ℃ Air Environment
IT：
Ttrip：
Vmax：
Imax：
Rmin：
R1maX：
Maximum operating time at 25 ℃ air environment at 5 times IH
Maximum operating Voltage of PPTC
Maximum withstand current of PPTC in Circuit
Minimum Zero Power Resistance of PPTC at 25 ℃
After one normal operation, place for 1 hour, at 25 ℃, the maximum power resistance of PPTC
4
www.yint.com.cn
Rev:19.3
相关型号：
SMD2920P030TFA
RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, SURFACE MOUNT, LEAD FREE
LITTELFUSE
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